written



Jan. 23, 1951 E. F. tRlTTEN, JR

MULTIPLIER MAGAZINE 11 Sheets-Sheet l Original Filed July 13', 1945 Dnfmmnmmmnmm.

mmm, m Q., mmmuwm Gttorneg Jan. 23, 1951 E:. F.BR|TTEN, JR 2,538,895

MULTIPLIER MAGAZINE Original Filed July 13, 1945 1l Sheets-Sheet 2 1N V EN TOR.

A TTORNE Y Jan. 23, 1951 E. F. BRITTEN, JR 2,538,896

MULTIPLIER MAGAZINE K Original Filed July 13, 1945 i 11 Sheets-Sheet 4 1N V EN TOR.

' ATTOR/VE Y Jan. 23, 1951 E. F. BRITTEN, JR

MULTIPLIER MAGAZINE ll Sheets-Sheet 5 OriginalV Filed July 13, 1945 ATTORNEY Jan. 23, 1951 E. F. BRITTEN, JR

MULTIPLIER MAGAZINE ll Sheets-Sheet 6 Original Filed July l5, 1945 INVENTOR. Ea'w/'n 3f/Hen, Jr. J .BY @Z7 Jan. 2*.3,` 1951 E. F. BRlTTEN, JR 2,538,89

MULTIPLIER MAGAZINE Original Filed July 13, 1945 l1 Sheets-Sheet 7 INVENTOR Mm' 5% my Jan. 23, 1951 E. F. BRITTEN, JR

MULTIPLIER MAGAZINE l`1 Sheets-Sheet 8 Original Filed July 13, l945 R l Y www. www mn w w w m6 m Vw www mi m I n m .C mv.. w\ .jw n1. :H W. f Hl l? Q n: l :gw: l wwww www l @mlrlulnlll a@ j m l M f w mmwmwm, am FF-MSM Imlmlwliaw-. www m F wr, Ir LIVMWI 1F l www@ lllllllllllllllll f Jan. 23, 1951 E. F. BRITTEN, JR 2,538,396

MULTIPLIER MAGAZINE Original Filed July 13, 1945 ll Sheets-Sheet 9 fea Il il fue ll Il INVENTOR Jan. 23, 1951 E. F. BRITTEN, JR 2,538,896

MULTIPLIER MAGAZINE l Original Filed July 13, 1945 11 Sheets-Sheet lO I gdm-Upg /W I E. F. BRITTEN, JR

MULTIPLIER MAGAZINE Jan. 23, 1951 original Filed July 13, 1945 ll Sheets-Sheet ll M sw @u Rw m n 0 v o N wrm rn 1E QM. W QQ, f, RN h www, o MN R un. www @HW NN m f www aw Sm. ww i E mmm. h 10 w w Q w Q mw bw S `Patented Jan. 23, '1951 maw-in um,

' L'iigLIER gigowmonruie Calculating ,Machine :Gymnam This application gis am idvsian .u n

ventlon emmen. v ctiqnlitnken 1 silbsianiallyfgnfjhe (CIL, zas-419) man sof mile snowing @me @www Beginning :50 disengaged by Contact of said pawLWithL-.any upported in thef 'flanfnirig:lofvr the driven element of clutch 58 is secured, thus rotating shaft 6| and a notched disk 62 fast thereon. An intermediately fulcrumed lever 63 has a roller normally engaging the notched disk 62 and having at its lower end a rolger of insulating material engaging a spring leaf of switch 64, interposed in the motor circuit. Rotation of shaft 6| will force the roller of lever 63 onto the periphery of disk 62, whereby switch 64 will be held closed.

When the anti-friction roller of arm 59 drops to the low point of cam 60, a forward extension of said arm will displace an arm 14, fast upon a. shaft 15. A slotted arm 16 (Fig. 6), also fast on shaft 15, has pin and slot connection with the link so that as shaft'15 is rocked, link 5| Will be lifted free of the stud of arm 58 of shaft |25, freeing clutch controlling rocker 52 (Fig. 6) from said shaft. i

Upon the initial movement of clutch 58 a cam '66, fast on shaft 6|, will be brought into contact with an anti-friction roller of lever 54, and during the remaining portion of the rst half cycle Iof movement of said clutch cam 66 will move rocker 52 further in the selected direction.

Fast to rocker 52 is a member 61 (best seen in Fig. 5) provided with oppositely disposed hook projections. This further movement of rocker 52, following depression of the plus bar, will Ybring one of the projections of member 61 into tor shaft |0|, thereby rotating a train of gear- .f

ing connecting with the shaft 4 of the differential actuators 5, as seen in Figs. 6 and 2.

Depression of the minus bar provides for the rocking of member 61 in the opposite direction, bringing the opposite hook thereof into engagertion roller |33 mouted upon an arm |34 (Fig. 5),

movement of the plate in either direction thereby serving to depress the rearward end of arm |34. A spring pawl |36 is mounted on the rear- Ward end of arm |34 and is normally held tensioned by ,engagement thereof with a lug of trigger 3|.

. |35 into position beneath the forward extension ment with the lug of afriction band 10 (Fig. 5)

engaging the periphery of a plate 1|, fast with a gear |09, loosely mounted on shaft |8| and meshing with the planet gears oi the differential. Holding of gear |09 will result in opposite or `subtractive rotation of the planet assembly and the differential actuators 5.

Having effected the engagement of the main clutch, auxiliary clutch 58 will be released and held disengaged in mid cycle position by means Y of a detent 13, whereby switch 64 will be held closed and rocker 52 held in extreme operated position, to maintain pressure upon the friction band of the main clutch. The differential actuators will continue to cycle until the depressed plus or minus bar is released or until the registration in the numeral wheels |3 changes from a positive to a negative character or vice versa. Thereupon, at the end of the current cycle, means will be operated for reengaging clutch 58 vand for stopping and locating the differential `opposed cam surfaces engaging an anti-fricof arm |34, holding said arm in rocked position until a cycleofV the differential actuators has been started. A rock arm 22, pivoted upon the framing `at 23, is'provided with a link 2|, the

lother end of which has driving crank connection with a shaft |54, driven in one-to-one ratio with the differential actuator shaft. During the rst registering cycle rock arm 22 will be brought into contact with quick stroke latch |58, disengaging it from arm |34 and bringing it into camming engagement with an arm |69, pivoted uponarm |34 and connected therewith by a strong spring |61. This will place arm |69 under the influence of restoring spring |61. 'I'he restoration of arm |34 involvesthe return of the plate |28 to normal centralized position, and since shaft |25 is free'from the link connection 5|, the shaft and plate |28 will be centralized, upon release of the key, by one of a pair of spring arms 8| (Fig. 3). In this return of. arm |34 pawl |36 will contact with the lug of trigger 3|, thereby Araising `said trigger out of contact with a pawl 25 carried upon a stopping arm 24. Stopping arm 24 is pivotally mounted upon the framing at 23, `and pawl 25, when released from trigger 3|, will be moved by its spring into contact with the rock arm 22. `As the differential actuators are rotated to their full cycle position, pawl 25 will fall behind a. shoulder of arm 22 to couple the arms 22, 24 together for movement as a unit.. Asthe actuators `pass beyond full cycle pos'tion, arm 24'wi11 be carried forwardly, acting, through link 11, to rock the mid cycle clutch detent 13out of engagement with the pawl of clutch 58. Rocking of detent 13 willalso bring said detent into contact with a pivoted plate 18, forcing said Aplate against adisk 19,`whereby further vrotation of the actuators in the original direction will be prevented. A leaf spring serves to hold plate 18 normally in light contactA with disk 19.

Auxiliary'clutch 58, being reengaged, will operate through its last half cycle of movement, thereby dissengaging the main clutch as follows: Cam 66 (Fig. 6), being rotated, will drop away from the anti-friction roller of lever 54, and a projection 63, xed upon said cam, will engage the upper arm of an intermediately fulcrumed lever 84, the lower arm of which is provided with an anti-friction roller engaging one of two opposed cam surfaces of the rocker 52 the roller,

being forced against the rocker to return it. to its normal centralized position, thereby disengaging the hook of memberY 61 from the lugrof friction band 68 or 10. i

The differential actuators, having been stopped beyond their full cycle position, will be returned to such position and held therein s0 long as the machine remains at rest. For this purpose an eccentric (Fig. 5) fast with the driven member of clutch 58, engages an anti-friction'roller of a pivoted plate |55, a second` anti-friction roller on said plate being driven bythe eccentric against a locatingV cam |53^fast upon the. shaft 5i; will: have;` relceatediclutch; detente 512;' in;A the:

ofte movement. ov the; proj eetingia portionAv of.A the clutch.. pme. scf... thatithe clutch-:1 wenn@ dise. ase isi rotated tm tulle cycle positiun. 'miel no :f: of; disk'` S nowrf lxelinggfiinx registers v'vitll:I tliegantfricticnrollen` off: lerevenr;I 63;.the3 switehriin temotorcircnitmilnbezopens, Also:..cam.llrhave 20y ing been rotated to normal position, spring armi Swi-ilibejfretensionediandlinktgS IC will :be failoyved tmdrfmfi intet engaeement witln the; stud of. arm

.gl s Eux-.inge each's cycle;l ofregiS-,tering-g n-toyementu thee actuetorsil 5;. a iccunting innerenl h1 5; (Flieg vonerateg.ongefefofthe numeral Wheel-se |56 W31 atrmxltipiierrqeiient: register.: inilcnowm mannen. 'lheeccuntingz fingen mechanism mangime;L of...

welll',knowmdesignebuttis .shawn hereinziasecon' fermingaf t 22.2{11523` suedtoaEdWard frygfl'jizl9.421andienttleshRegisteren"f Nngfreggs'tzingopefaticus .the actuators are returned frnrfo willi. ailcvw'a 'pari-,mi cperaticnlcf anni. 59, suicient to close the motor switei'iand?. coupiei links. 5 fibut? insuiiieientz to; break.' the toggle? mii, this; toggle new? actingig. anden* the? thrust.. or: link/.1. les# te break: the:- t'cgglei. |5195. aridi ro'cletheeframea I SI?!fintriiitsilowenpcsitin inktieagearingreiatedzztothedifferential actuators? S-isf mcvedacuacff meshzwitnithe. gearing relatedi tothefregisterilf. 1' Whenzcarrigefshifting;isitbfbe feffeetei anim termediately; pivotedi lever I88 ('ligfi 2)" Will b freedtby 17h62 rockingef `framel'l f'bintkr' strainttof apinslsxedfinlsaidframe'; allowin f. leven-w8 and the parts connectedxthferete-.t rockt .underrtne inHuen-ce. of-

springe: I9`0' un Lever |38 is connected by means'ofrzabell lever IGIl andi 1in-k1" |925: Wthaeslipperfarml |93, engaging: the? grcovesv ofi a-clutch'f elementi Isl-1 splinedafto' .atcarriagersniftingeshaft; I 95t (see aises Eiger 4051-; so; tliatiirrftheetmovement.fof frame'll ttf? its? lowerf position?- spring.; |911;4 will.' meile-1f ciu elements'. |94-i into.` contactl with?4 a'r cooperat clutch-hub :offashifting Wor'xnzi |96", engagin pinion.V I 97 Which" in turnlmeshesii with tie'tee racliz lssfixed iup'cnfthe iregisterr'carriage ilyfmovement when*frame'slT'Iis:dropped, aflevenr:

laeneathzaslugormedebnetherinward: endcofi anni 7.5i' prcgrami deviceszfso that= carriageishi'ftingcmay v assente' substituted for calculating during given periods of the operation.

As shown, the capacity of the magazine allows for the storage of six multiplier digits, the magazine including escapement devices comprising six slides 303 (Fig. mounted in the end plates of the rotary magazine and controlling the rotation thereof; value storage or duration control elements comprising six slides 304 (Fig. 16) differ- 'entially settable under control of `the multiplier keys 300; shift selection devices, comprising six slides 305 (Fig. 17) under control of the 0 multiplier and carriage return keys 30|, 302, and de vices including a pawl 306 (Fig. 16) for feeding the slides 304 step by step toward their operation terminating position.

Upon each release of a multiplier key, the magazine is rotated or stepped, to bring a second set of slides 303, 304 and 305 into position beneath the key stems, and the feeding pawl 306 is carried around with the magazine. The multiplying operation is initiated as `the magazine makes its first step out of normal position, and upon the completion of the computation of each multiplier digit, the feeding devices will be rotated or stepped reversely, so that the feeding pawl 306 will act upon the succeeding slide 304. When the reverse rotation of the feeding devices brings them back to normal position, the operation of the machine will be concluded.

Upon depression, the stem of any key 300 will contact with the beveled face of a related toothv formed in the escapement slide 303 which may at the time be located beneath the keys, moving said slide toward the right. Each slide 303 is provided with a cam face 301 engaging the tooth of a pawl 308, mounted in a guide plate of the spring 3|2 will act to give the magazine a partial step of clockwise rotation, bringing a cam toothv of the succeeding slide 303 into contact Ywith a shoulder 324 of the key 300. 1

The release of plate 3|9 has also effected an infV terlocking of the` multiplier keys, sothat the key first depressed must be restored before any other multiplier key may be depressed. This is effected by engagement of the upper edge of plate 3 I 9 with` pressed key and re-eifect4 engagement'of latch.

In the normal position of the parts a pin n32 (Figs. 8 and 1'5) of the feeding mechanismengages a latch 321 pivoted upon the machine frame, whereby the feeding pawl 306 vis held-'out of operative relation with the slide 304, against magazine and engaging also one of a series of ratchet teeth 309 (Fig. 16) of the related slide 304. Slides 304 are urged toward the left by a spring 3|0, and held by the pawl 308. Upon de` pression of key 300, and movement of slide 303 to the right, pawl 303 will be rocked and slide 304 will be released, moving to the left under influenceV of spring 3 l 0 until stopped by engagement of a projection 3| of the slide with the stem of the depressed key. Projections 3| are located at varying. distances from the key stems, and thus provide for thesetting of slides 304 in accordance with the key values.

The magazine is urged in clockwise direction as viewed in Figs. l0 to 14 by a coil spring 3|2 (Fig. 18) having one end secured to the magazine shaft and the other end fast to a friction shoe 3 3 engaging the flange of a drum 3 |4 loosely mounted upon the magazine shaft. The drum is provided with a ratchet 3|5 engaged by a holding pawl, and also engaged by anadvancing pawl.

3|6, fixed upon an arm 2|3, said arm being oscillated during operation of the auxiliary clutch. by means of cam and link 2|2 (Fig. 2), and thereby serving to maintain the tension of spring Normally, the magazine is held against rotation by means of a latch 3H (Figs. l1 and 13). pivoted upon the framing of the machine, and held in latching position against the operation of a spring 3|8 operating through plate BIS, pivotally supported upon the magazine shaft, link 320 and arm 32| of the latch. Holding of the latch in' operated position is effected by an extension 322 of plate 3|9, engaging a lug 323 (Figs. 13 and 15) of one of the slides 303.

Upon depression of a key 300 lug 323 will be moved out of engagement with extension 322, and

the tension of a spring 328 (Figs. 16 and 19); One end of spring 328 is anchored to ashaft 329, the other end of the spring engaging a rod yfixed in themachine frame. A pinion 3,30 is fastlon the shaft 329 and engages a gear 33| upon-the hub of which feeding pawl 306 is mounted. The

pin 326 is carried in an arm 332, loosely mounted` upon the magazine shaft, the pin engages a perforation of gear 33|, whereby it is rotated as a unit with the feeding pawl. This normal posi-tion of the parts is illustrated in Fig. 14,'the feeding pawl 306 being out of line with the slides 304 and the pin 326 being out of line with the pins y333.

nection permits relative axial movementbetween arm 3 35 and the feeding pawl 306, axialmovef ment of gear 33| with pawl 306 being provide for by the elongation of pinion 330. y

Rotation of the feeding pawl 306 into feeding position relative to a slide 303 will bring the tooth of said pawl opposite the end of the slide, if it has not 'been set toward the left, or into engagement with one of a series of ratchet Iteeth 331 (Fig. 16) of the slide in case' it has-been set toward the left. The machine will now be started and paw1306 reciprocated as follows:

Upon release of the key 300 the stepping forward of the magazine will bring one of the pins 333 against lug 334 of arm 335, carrying the feed-r ing devices forward to the position illustrated in Fig. 10, and thereby carrying pin 326 away fromr latch 321. Latch 321 is connected by link 338 (Fig. 8) with an intermediately fulcrumed lever 339, the lower arm of said lever being provided 'with a pawl 340, urged toward the rear ofthe machine by a spring 34|. Upon disengagement 0f latch 321 by pin 326 spring 34| will act to :rock lever 339 in a clockwise direction as viewed lin` Fig. 8, and a rod 342 pivoted to the upper 'arm` of said'lever will be carried forward. The 'rear- `ward endoftrod 342 is supported upon a rock arm v333 andis provided with a pin-344 operable dur ingthe forward movement to engage the .lower cam surface 345 (Fig. 6) of abell crank lever 346, rocking said Ybell crank lever in a clockwise directionas lviewed in Fig. 6 and, through link 341,

moving the :rocker E clockwise, to effect engage' men-t of the auxiliary clutch and `setting Vof the main clutch for additive operation, as previously described. Operation of the *main -clutch will effect 'cyclic oscillatory movement of lever 22 y(Fig. V20), and movement of this lever is utilized to reciprocate the feeding paw1 336, by means of a link 348, connecting arm 22 with a rocker 349,

said ,rocker 4in turn engaging one'arm of 5a bell crank lever 353 (Fig. 9), the other arm of which is pivotally connected with a slidable yoke-35i, having apair of antifriction `rollers 352 engaging Vopposite faces of the gear 33|., which acts 'as a shifting collar. Thus gear 33| and .feeding pawl Bare reciprocated onceduring leach cycle of operation of the machine, pawi 306 `moving slide 13.64" step .bystep toward fthe right-to and beyond its normal position.

Projections-3H yci the'slides 334 aresorelated to the stems of the multiplier keys 330 .that .the -depressedkey 'representing a multiplier value oi' :one allows no vmovement ofthe' slide; the two key allows for a one step setting movement, etc., the nine kcy allowing an eight lstep movement. Therefore movementv of La slide S04-.beyond nor-- mal position occurs during the last multiplier ycle. Control ofthe full cycle stopping means by slide 3054 iis effected by any movement of the slide toward the right from vnormal position. Since 'there is no ratchet tooth 309 td hold slide 5304 tothe right of its'normal-position, the slide will Vbe returned by .its spring 3l0a's soon Ias feeding pawl i306 has -be'enretracted As willbe seen, lthis arrangement-is particularly useful in controlling asingle cycle of operaticnto eiect'shifting' of the :carriage after .completion of'a multiplier `digit '.registration` v.

'Inmovingto the right from :normal position,

10 engage the auxiliary. clutch and set the main clutch .for operation in the appropriate direction. In order todelay this .reclutching action somewhat, lever 339 .is held in operated position Yby means of a latch 362, engaging stud 363 of said lever, latch 3612 having a cam portion engaged by .pin35l to .release the latch as said pin moves away from lever 339. l vThe machine being restarted, feeding pawl 306 will again voperate the same slide 334 to terminate the 'shifting Voperation at the end of one cycle o the driving means. v

"The direction in which the carriage is shifted, thelowering of frame l 11 to effect shifting rather than calculation, and the subsequent release of lthe'feeding devicesfrom the magazine sothat they will be stepped back by the action Aof lspring 328 is determined by means lof the program mech;- anism, which will. be presently described.-

The stepping back of `the feeding devices is effected by axial movement of the hub of arm 332 (Figs. 8 and 9), whereby pin 326 will engage 4the pin 333 (Fig. :10) against which lug 334 of arm 335 rests, this pin .333 being pushed back against the tension of its spring, to release said arm, whereupon spring 32-8 will rotate the feeding devices backward, until the succeeding pin S33-of the magazine contacts :lug 334, to hold the feeding devices in operative Vposition relative to the succeeding slide 304,

It will 'be obvious that calculation may occur with the feeding devices llocated opposite any of vhindrance by the setting up of the multiplier.

ySlide 304avili engageanarrnSf-B `(Figs. 1l and 16) `:formed as an annulus, `and .rigidly secured to a 'slidably mounted shaft 354, normally held toward the vleft by :means of fa spring 355. Fast :to the opposite end of shaft 354 is va cam plate 356 (Figs, 8, 16 and 20), .overlying the Aforward -fendof an intermediately pivotedlevcr 351, the .rearward arm ofwhich overlies a lug ofthe trig- :ger JLcUntrDilingfthe full 'cycle stopping means in fthe' `manner previously described. Therefore, movement' of slide 304 to the right will move shaft 154 therewith, land cam plate 356 will operate lever 35.1 to trip trigger 3i and effect the stop.

Themachine vwill be 'automatically yrestarted as "'During vthe iii-'st rhalf cycle ci the auxiliary clutcfifanam 1358 (Fig. l5) fast to the driven member `of said l clutch will bev operated, said arm being connected by means of la link 359 with an arm 35! I'Figjzf The pivot Spin 361 of this connection is 'extended to Athe opposite side of i The magazine has been designed to provide for operation without interruption of the setting up of the multiplier under all ordinary conditions. That is to say, the capacity of six places in the magazine is designed in relation to the capacity of the register carriage 2, which may be shifted f into ten different positions relatively to the differential actuators. Means-are provided, however, to lock the keys 300 temporarily against operation, in case allsixslides 304 have been set before the completion of the operationcontrolled bythe first of the six slides.

'For this purpose an extension 334 (Fig. 11) is provided on the latch 3l1, this extension being movable, when the latch is released, into the path of movement of 'a pin '355, fixed in a gear '303, `which'is Adriven from a pinion 331, fast upon the feeding shaftr329. Thus pin 365 will be carried around with' the magazine in fixed relation to the feeding pawl '336, and whenthe depression of Aa key Sunland stepping of the magazine brings pawl 303 intoiopera'tive relation with a slide 304 located justto the left of the keys 330 as viewed in Fig` i3; pin '5365 will be positioned opposite the exten-A sion 3,64 of latch`3l1. In' this position offthe parts, akeyBED-may be depressed as usual, movingthe lug 323 of slide 303 away from the exten- .sion 322 of plate '3|9. However, pin 355 will prevent the release of latch 3H, certain lost motion in the link connectonzll permitting plate 319,120

berotjated counter-'clockwise byfsprng 3 l 8,'bring: s .ing theflipper ledge of seid plate into position l 1 above the stem ofthe depressed key and into the 4notches 325 of the remaining keys 399. Thus the depressed. key will effect the proper setting of slide 384, and will be locked in depressed position as a signal to the operator that the capacity of vthe magazine has been reached. Upon conclusion fof the calculation in this position of the magazine, and the succeeding shifting of the carriage, the feed devices will be free' from the magazine '(all as described later in connection with the pro- 'gram mechanism) said feed devices will be stepped back in a clockwise direction, removing `pin 365 from beneath the extension 334 of latch 3|1. Spring 3|8 will now move plate 3|9 further 4 irl a rcounter-clockwise direction, releasing latch '3|1, after which engagementof acam projection of the succeeding slide 383 will engage extension .upon a sliding frame 310. vKnob 369 is yieldably :held in ,one of four positions by 'means of a spring latch 31|, these positions providing for plus or minus registering operation and for right or left 7carriage shift,4 as indicated by the'designationson lthe keyboard plate; Thesliding frame 318 has a .slotted'end engaging `one supporting arniof a bail-312 iFigs.' 6 and 19) vslide'ably secured upon the square shaft 313 to which rock armA 343 is also secured. Bail 312 is provided with a rearward extension movableby the sliding frame 319 into relation with one `or another of f a series of .blocking plates 314, fixed upon the program shaft "315; It may be noted that there are three plates 314, and that in one positionv of sliding frame 318, the extension of bail -312V will not register with a blocking plate.

f 'Program shaft 315 is given an'eighth rotation during each half cycley of operation ofthe auxiliary clutch; rotation ofv the shaft during-the frst or preliminary half cycle of the clutch being :effected by the -pawlor' tappet 340 I(Fig. .8). ...mounted upon' the pin 38Iand operating upon a .ratchet 31.6, xed upon shaft 315, and movement of the -shaft during -the final halfcycle of the .auxiliary clutch by means of a pawl or tappet .311, also mounted upon thepin 38| (Fig. 20) enjgaging a ratchet 318, also fast upon the program shaft. l

Rotation of shaft 315 Will position the blocking plate relative to the extension of bail 312, certain of the plates providing for the alternate blocking and unblocking ofA bai'l- 312y shaft l313 and rock arm 343. When rock arm 3-'13 is blocked 'against movement the rocking of lever 339 (Fig. 8) occurring upon the final half cycle of .the auxiliary clutch will move the pin 344 out of a cam slot of rock arm 343, so that the pin 344 will `travel in a higher path, engaging an upper beveled surface 319 (Fig. 6) of the bell crank lever 34E, rocking said'bell crank lever in a counter-clockwise'direction and moving rocker 52 Y- also counter-clockwise to effect subtractive or --left shift operation of the driving means. vIn the position of knob 369 illustrated in Fig. 1 the registration is to be additive, and the carriage is to be shifted' toward the left, in Yorder that. the keys 3 8!) may. be operated successively to set "up the'. multiplier digits, fromV `highergto lower order, in the Vnatural reading succession.

l2 Therefore, the blocking plate 314 shownengaged by the extension of bail 312 in Fig. 19 is provided with two blocking surfaces, and with two cnt'u away portions providing for free movement of rock arm 343. During registering operations, the cut-away portion of the plate will be opposite the extension of the bail, and pin 344wil1 move in its lowerpath, setting the machine forl addi'- tion, while duringa shifting operation (which follows a quarter rotation of the program shaft) 'the blocking portion of the plate will be opposite the extension, the pin 344 will move in its upper path, and the main clutch will be setJ for' left shift operation.

It will be obvious from an inspection ofFigs. 1 and 19 that the right hand plate 314. will be similar to the cam just described, but will be secured upon shaft 315 ys'oas to reverse the direc; tion of the registering and carriage shifting ac tions; that the left hand plate 314 will be a comi plete disk, servingy to block the rock lever in all positions of the 'program shaft, and that the -fourth position of bail 312 willlocate the exten- Y sion thereof opposite a blank space between the two right hand plates 314. i A blocking plate 38|) (Fig. 18) fixed upon pro,-

gram shaft 315 controls the position of frame |11, to control the occurrence of registering or alternatively of carriage shifting operations, as

follows:V

Normallyplate 388 is engaged and serves to restrain a spring pressed nger 38| which en# gages the blocking paw] |86, the plate being .so designed that during the first quarter rotation ofshaft 315 the 'finger will be retained in re.'- strained position. Finger 38| is also restrained by a pin fixed in a link 382, pivoted .upon an arm -383 which is secured upon the shaft 384 upon which lever 339 is fixed (Fig. 8). Upon release `of the latch 321, and before the start of the preliminary'cycle ofthe auxiliary clutch, shaft 384 will be rockedf'and the pin of link v382 will be moved vaway from finger 38|. This condition of the parts will be repeated whenever the auxiliary clutch is engaged, engagementV of .the .clutch being immediately followed by operation of the ktoggle breaking arm 59.` At this time arm 358 and link 359 are working about dead center position, so that the movement of the pin against the finger 38| will be delayed until arm 59 has operated. Therefore, during the preliminary cycle preceding a registering operation, block- `ing plate- 388 will prevent operation of finger 38|, but said blocking plate is so formed that during the preliminary cycle preceding a carriage shift, the blocking' portion' of the plate will be out Yoi! line with finger 38|, and the spring 385' of said finger will operate lto rock the blocking pawl |38 into position beneath the end Yof arm 59,l so that frame |11 will be rocked into carriage shiftng position. The 'other end of link 382 has pin and slot connection' with arm 14 and serves to disconnect the manual control means when shaft 384 is rocked. 1

Program shaft 315l controls'the release of the feeding devices, for vbackward rotationrelatively Ato themagazine, as follows: yA blocking plate 386 (Fig. 20) is fastvupon the left hand end -of shaft 315, said plate normally holding a latch tripping arm 381 in raised lposi? tion, against the tension of a spring 389. An ex'- tension of arm 381 normally contacts with a pin 390, fixed in the full cycle stopping arm 24. The first eighth rotation `of shaft 315 leaves blocking plate :386 still in engagement-withthe' arm- 88-1;, in which position of the parts the full cycle 13 Y l stopping means will operate to terminate the calculating operation. During the iinal half cycle of the auxiliary clutch following the calculation, shaft 315 will again be rotated, bringing the blockingportion-of plate 386 out of line with arm 381. The tripping arm is, however, held in restrained position at this time by pin 390 until, at the conclusion of the carriage shifting operation, arm 24 is carried forward, when pin 390 will release the arm 381 for operation by spring 389. A latch 388 has operating engagement with arm 331 and a lug normally engaging and serving to restrain a spring operated lever 39| (Figs. 9, 19 and 20), fulcrumed at 302 and provided with a pin 393 engaging a grooved hub of the arm 332 which carries plunger pin 326. Upon release of lever 39| spring 394will, therefore, operate to move plunger pinV 326 toward the right, engaging and retracting the related pin 333, to release the feeding devices. Lever 30| will be restored to latched position by means of the pin 36| engaging a roller 395, carried by lever 39|.

Zero multiplier key According to the invention a zero multiplier, or a series of such zeroes, may be provided for by operation of the appropriate key 300 in conjunction with the depression of the zero key (Fig. 17). For instance, a series of three zeroes would call for the depression of the 3 multiplier key and of the key 30|. Key 30| extends across the series of multiplier keys, and near its left hand end is provided with a stem 391 adapted to engage a cam extension of slide 305, to move said f3 of said slide will engage an annular frame pate 400 (Fig. 12), whereby the slide will be held rigidly as set until it has been carried completely around with the magazine, back to the setting position, where it will escape into a slotted portion Vof the annular plate v4and will be reset to normal position by means of appropriate guide cams.

As the feeding` devices are brought into operative relation with set slides 305 (that is to say, into the position in which the related slide 304 is to be operated by pawl 303) one of the walls of a notch of said slide 305 will be engaged by a cam finger 40|, Xed upon the hub of the gear 366. Gear 36B is slideably mounted upon the magazine shaft, and contact of slide 305 with the cam finger will therefore move the gear to the right. A lever 402 (Fig. 19) has a forked end engaging the gear 35E, the opposite forked end of said lever engaging the plate 380 of program shaft 315. Therefore, movement of gear 306 axially to the right will set the program shaft 315 to the left. This will have the effect of removing blocking plate 330 from position opposite the finger 38|, allowing said finger to set the blocking pawl for the carriage shift operation; will bring one of a second series of blocking plates 403 or appropriate blank spaces into relation with the extension of bail 312. in place of the blocking plates 314, and

will disable the program shaft rotating means by 14' tion of the mainv clutch as is called for by the adiustment of knob 369 in normal carriage shifting operations.

It will be apparent that whenever the feed de- ,k

vices are brought vinto line with a set of slides wherein slide 305 stands set to the right, carriage shifting will occur` and that the shift will continue until the related slide 304 is moved to the right, beyond normal position, whereupon the full cycle stopping means will be operated. Blocking plate 386 having been moved. with shaft 315, out of engaging position with arm 381. operation of the stopping means will effect the release of lever 39|, and backward rotation of the feeding devices. This will disengage cam finger 40| from slide 305, whereupon a spring centralizing device 404 (Fig. 19) will act to return -program shaft 315 to normal position.

The carriage return key 302 cooperates with the multiplier kev 300 in a manner similar to that of the key 30 ,simultaneous depression of key 302 and a multiplier key 300 effecting reverse shift of the carriage one or more places. This return shift may be either to the right or to the left. but is always in the opposite direction to the normal multiplier shift indicated bv the position of knob 309. The stem 405 of key 302 operates unon the opposedcam surface of the slide 305, setting said slide toward the left, where it is locked upon rotation of the magazine by engagement of the lugs 399 with the left face of annular plate 400. Engagement of the cam finger 40| with the wall of the notch in slide 305 now serves to move gear 306 to the left, and therefore to move program shaft 315 to the right. bringing a third series of blocking plates 336 and blank spaces into cooperative relation with the extension of bail 312. The plates 39B are complete disks, the disks and blank spaces serving to reverse the directional operation of the main clutch, relative to the operation provided for during the shift by the blocking plates 314.

I claim:

l. In a motor driven calculating machine having a product register, cyclicdifferential actuators therefor, and full cycle stopping means for said actuators; means for controlling multi-cycle operation of the differential actuatorsincluding multiplier keys, a rotary magazine, power means operable in response to manipulation of said keys to rotate the magazine, slides mounted in said magazine and differentially setta-ble by said keys, escapement means operable by the keys to permit stepwise rotation of the magazine to bring successive unset slides into setting position, connections engageable by the slides to operate the stopping means, a reciprocable lever driven in time with the differential actuators, devices rotatable with the magazine and including a reciprocable pawl having collar and yoke connection with said lever and operable thereby during rota-l tion of said devices to feed a slide step by step toward the stop operating connections, and devices operable in response to operation of the stopping means to rotate the feed devices reversely relative to the magazine into relation with successively set slides. L

2. In a motor driven calculating machine having a product register, cyclic differential actuators therefor, and full cycle stopping means for said actuators; means for controlling multi-cycle operation of the differential actuators, including multiplier keys, a rotary magazine, power means operable in response to4 manipulation of said keys to rotate the magazine, spring urged slides mounted aces-,eee

insaid magazine `and having shoulders engageable with and normally spaced from :the key stems by graduated intervals, detents normally serving to hold said slides against the urgency of their springs and releasable by said keys, escapement means operable by the keys to permit stepwise rotation of the magazine to bring successive unset slides into register with the key stems, connections engageable by the slides to operate the stopping means, a reciprocable lever driven in time with the differential actuators, devices rotatable with the magazine and including a reciprocable pawl having collar and yoke connection with said lever and operable thereby during rotation ci said devices to feed a slide step by step toward the stop operating connections, and devices operable in response lto operation of the stopping means to rotate the feed devices reversely relative'to the magazine into relation with successively set slides.

43. In a motor driven calculating machine having a product register, cyclic differential actuators therefor, and full cycle stopping means for said actuators; means for controlling multi-cycle operation of the differential actuators, including multiplierkeys, a rotary magazine, powermeans operable in response to manipulation` of said keys to rotate the magazine, slides mounted in said magazine and differentially settable bysaid keys, escapement means operable by the keys to permitstepwise rotation of the magazine to bring successive unset slides into setting position, a reciprocable lever driven in time with the differential actuators, devices rotatable with the magazine and including a reciprocable pawl having collarand yoke connection with said lever and operable thereby during rotation of said devices to feed a slide step by step toward and beyond its normal unset position, connections engageable by a slide inthe movement thereof beyond normal position to operate the stopping means, and devices operable in response to operation o the stopping meansto rotate the feed devices reverselyzrelative to the magazine into relation with successively set slides.

4. -In a motor driven calculating'machine hav-- ing a product register, cyclic dierential actuators therefor, and full cycle stopping means for said actuators; means for controlling multi-cycle operation of the differential actuators, including multiplier keys, a rotary magazine, power means operable in response to manipulation or' said keys to vrota-te the magazine, slides mounted in said magazine" and diierentially settable by said keys, escap'em'ent means operable by the keys to permit stepwise rotation of the magazine to bring successive unset slides into setting position, connections engageable by the slides to operate the stopping'means, a reciprocable lever driven in time with the differential actuators, devices rotatable with the magazine and including a reciprocable pawl having collar and yoke connection with said lever and operable thereby during rotation of said devices to feed a slide step by step toward the stop operating connections, devices operable in response to operation of the stopping means to rotate the feed devices reversely relative to the magazine into relation with successively setslides and means responding to rotation of the feed devices with the magazine to lock the 'multiplied keys against movement when the storage capacity of the magazine is exhausted.

f5; In a motor driven calculating machine havinga `product register, cyclic Vdi-fereifltial actuamultiplier keys, a rotary magazine, power means operablein response to manipulation of said keys to rotate the magazine, slides mounted in said magazine and dirferentially settable by said keys,y

escapement means operable by the keys to permit stepwise rotation of the magazine to `bring successive unset slidesinto setting position, ccnnections engageable by the slides to operate the stopping means, a reciprocable lever driven in time with the differential actuators, devices rotatabie with the magazine and including 4a reciprocable pawl having collar and yoke connection with. said lever and operable thereby during rotation jor" ,said devices to feed a slide step by step toward the stop operating connections,l devices operable in response to operation of the stopping means to rotate the feeddevices reversely Arelative to the magazine into relation with successively set slides, and means responding to 11o-r tation of the feed devices with the magazine to lock the multiplier keys and magazine against movement when the storage capacity of the magazine is exhausted, said locking means being operable to release the key andV permit rotation of the magazine upon reverse rotation of the feed devices.

6. In a motor driven calculating machine having a shiftable carriage, a product register mounted therein, differential actuators for said register, and carriage shifting means; cyclic drive means common fto said actuators and said shifting means, full cycle stopping means for the drive means, means for controlling operation of the drive means, including multiplier keys, arotary magazine, slides mounted in and equidistantlyv spaced about the periphery of said magazine in an endless series and diirerentially settable byk said keys, means operable in response to manipulation of said keys to rotate the magazine to bring the slides successively into setting relation" with the keys, connections engageable by the slides to operate the stopping means, means operable to effect the engagement of said connections by theslides including a pawl rotatably carried with the magazine and reciprocable in time with the cyclic drive means to restore the slides from .set position, means for reversely rotating said pawl-relatively to the magazine in response to operation of the stopping means, program devices mounted exteriorly of the magazine and settable to control registering action of the 4,actuators or alternative operation of the carriage shifting means by said drive means, means operable in time with the full cycle stopping means to set the program devices and thereby change the nature of the operation, and means coordinated with `the rotary positioning of the pawl and with the operation of the stopping meanstol 17,1. common-toy4 sami-,actuators -andgfsaid .shifting means,xfull cycle stopping 'meansnfor the drive means, means for controlling operation of the drive means, including .multiplier keys, a rotary magazine, Aslides mounted in. `and equdisrtantly spaced about the periphery of said. magazine in an endless series and diierentially settable from normal. position by saidkeys, `.means operable v in response to, manipulation of said keys tol rotate the magazine. tc bring. the slides. .successivelyinto setting relationwith the keys, connections engageable by. the...slidesy upon .return thereof beyond.,v normal positionA ,tof operate the, ,stopping means, means operable to effectlthe engagement of. said connections by the, slides including a pawl rotatably carried With the magazine andreciprocable in time-with vthelcyclic drive means. to ijeturnl a slide step by step ,towardiand beyondnormal position, means for... Vreverse'ly' rotating saidpawl relatively tothe 'magazine'i'n :response t Qpeieiqll. 0.1. :the-',:Steppina vmeansrp ramA de-v vlilces. mounted,fexteriorlyv of the ma azief and s egtable to; control registering action o f the actuators and,thereafter operation ofthe carriage shifting means Ainfs eggihance by said Vdrivemeansl means operable in timewith the full cyclstoppinganeans to set the program devices and thereby. change theV ,nature of the operation, and means .coordinated-with the;, rota1fy positioning ofthe pawland.withpthefoperation ci the .stopping means -to initiate reini'tiate, andfinally stop Qneatiqri Qf thdrvinemeansx --1 9. In a motor driven calculating. acl-line hav;- ingya shiftable carriage; a, product register mounted therein, diierential actuators for said register,.and carriage shifting means; cyclic drive means eommon..,.tov .said actuators andsaid shift- Iiri'g means, full cycle" stopping means for the drive means, means for controlling operation'of the drive means,- including multiplier keys, a rotary magazine, devices operable by the keys to rotate the magazine, slides mounted 'in and equidistantly spaced about the periphery of said magazine-in an endless seriesand differentially setta-ble lone by-one by saidfkeys, connections engageable'r the slides'f'tofoperate the stopping meanside'vices rotatable withthe magazine and operable in timey with lthe,-,di-iferential actuators to feedha slide step by step toward the stop operating' f'ccnnections, program devices `mounted exteriorly of the magazineand settable to control registering action of the actuators ,and thereafterlr'operation of the carriage shifting means, and normally restrained means releasable by the program devices and responding to operation of the full cycle stopping means to rotate the feed devices reversely relative to the magazine into relation with successively set slides.

l0. In a, motor driven calculating machine having a vShiftable carriage, a product register mounted therein, differential actuators for said register, and carriage shifting means; cyclic drive means common to said actuators and said shifting means, full cycle stopping means for the drive means, means for initiating and controlling multi-cycle operation of the drive means, including rr'iultiplier keys, a rotary magazine, slides mounted in said magazine and differentially settable by said keys, means operable in response to manipiilation of said keys to rotate the magazine to bring the slides successively into setting relation with the keys, a pawl driven in time with the cyclic drive means to restore the slides from set position, connections engageable by the slides upon restoration to operate the stopping means,

aseasee l and -,means for reversely rotatingl said. Vpawl rele ;j ativelyto the magazine in response to operationlof the stopping means, program Adevices includ-i,

v ing a plate successively settable by thek fullncycle stopping means to control registering action of the actuators and thereaftercperation of fthe f carriage shifting means, and a plate settable with the first named plate and cooperating with the .I pawl., to eiect a singlecycle of shift, a zero key,

and devices mounted insaid magazine and inecluding a displaceable element rotatable intime ,Y with." the slide restoring-'pawland having connection with` said plates, and an element settable bythe zero key into the path .of movement of "said,displaceable element to displace thesame 1 'andtherebyleset the program devicesto eiect 5v to eliminate .the succeeding single cycle shift.Y w

al carriage shift in place of a registrationand 11 In motor driven calculating machine hav,-Y ing ajgshiftable carriage,- a producty register mount-g:v

rk ed therein, differential actuators for said register; and carriage shifting means; cyclic drive n'iean'sy commontov said actuators .and said shifting 1 means, .,.fu'll' cycle .stopping means. forv the drive means, means for initiating and controlling mul;

- ti-cycle; ,operation of the drive means, Aincluding multiplier keys, a rotarymagazine, slides f mounted in said magazineand differentiallycstl tablegby said keys, means operable in response to .manipulation of said keys to. rotate the magazine 150..brins the S1ideS....u.C.c

.l 1i.- into Setting rela: tion with the keys, a pawl driven in time with .the

.cyclic drive means. to restore a slide step by step .toward and beyond its normal unset position, connections engageable by the slides upon restoration to operateV the ystopping means, and means for :reversely rotating said pawl relatively to .the

magazine in response to operation of the stop.- ping means, program devices including a pla-te successively settable by the full cycle stopping means to control registering actionof the. actu-` ators and thereafter .operation of the carriage shiftingmeans,-and` ablocking plate settable with the viirst-named 4plate and acting topprevent reverse rotationof the paWLafter .a registering-operation a zerovkey, and devices mount- 7 ed in said magazine andincluding a displace.- able elementrotatable in. time Withthe slide restoringpawl and having connection lWith said plates, Vand an element settable-by the zero key into ithe path of movement of. said displaceable element to displacel the same and thereby reset the program devices to effect a carriage shift in place of a, registration;V and to disable the blocking plate.

12, In a motor driven calculating machine hav,-

jing afshiftable carriage, a product register mounted therein, differential actuators for said "registergivland carriage shifting means; cyclic drive means ommon to said actuators and said shift-y Y s, full cycle stopping means for the drive. eans for initiating and y controlling` l multi-cycle operation of the drive means, includingfdifferentially settable duration control elements operable in time with the cyclic drive means,';land connections engageable by the cpr.

erated duration control elements to operate the stopping means, program devices including a p late successively settable to control registering l of thjearriage shifting means in sequence, .a

.opei'atin'g with the duration control elements" effec single cycle of shift, tappet conii'ecti;Vl n by the full cycle stopping means tz'rset 

